document.writeln("<header>");
document.writeln("    <div class=\'navbar navbar-default navbar-fixed-top\'>");
document.writeln("        <div class=\'container\'>");
document.writeln("            <div class=\'navbar-header\'>");
document.writeln("                <button type=\'button\' class=\'navbar-toggle collapsed\' data-toggle=\'collapse\' data-target=\'#bs-example-navbar-collapse-1\' aria-expanded=\'false\'>");
document.writeln("                    <span class=\'sr-only\'>Toggle navigation</span>");
document.writeln("                    <span class=\'icon-bar\'></span>");
document.writeln("                    <span class=\'icon-bar\'></span>");
document.writeln("                    <span class=\'icon-bar\'></span>");
document.writeln("                </button>");
document.writeln("                <a href=\'javascript:void (0)\' >");
document.writeln("                    <img src=\'images/header-logo.png\' alt=\'logo图片\' width=\'32%\' height=\'32%\'/>");
document.writeln("                </a>");
document.writeln("            </div>");
document.writeln("            <div class=\'collapse navbar-collapse nav-navbar\' id=\'bs-example-navbar-collapse-1\'>");
document.writeln("                <ul class=\'nav navbar-nav\'>");
document.writeln("                    <li><a href=\'#\'>首页<span class=\'sr-only\'>(current)</span></a></li>");
document.writeln("                    <li><a href=\'#\'>试用</a></li>");
document.writeln("                    <li><a href=\'#\'>新品</a></li>");
document.writeln("                    <li><a href=\'#\'>折扣</a></li>");
document.writeln("                    <li><a href=\'#\'>清单</a></li>");
document.writeln("                    <li><a href=\'#\'>体验</a></li>");
document.writeln("                    <li><a href=\'#\'>体验师</a></li>");
document.writeln("                    <li><a href=\'#\'>APP下载</a></li>");
document.writeln("                </ul>");
document.writeln("                <form class=\'navbar-form navbar-right\' action=\'register.html\'>");
document.writeln("                    <div class=\'form-group\'>");
document.writeln("                        <input type=\'text\' class=\'form-control header-input\' placeholder=\'您想要找些什么\'>");
document.writeln("                        <img src=\'images/search.png\' alt=\'头部搜索图片\'  class=\'header-search\'/>");
document.writeln("                    </div>");
document.writeln("                    <button type=\'submit\' class=\'btn btn-default\'>注册</button>");
document.writeln("                </form>");
document.writeln("            </div>");
document.writeln("        </div>");
document.writeln("    </div>");
document.writeln("</header>");